Adjuster for field-magnets of dynamo-electric machines or motors



(No Model.)

M. WADDELL. ADJUSTER FOR FIELD MAGNETS 0P DYNAMO ELECTRIC MAOHINES ORMOTORS.

Patented Oct. 9,1894.

INVENTOR (WWW W WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

MONTGOMERY WADDELL, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO MONTGOMERYWADDELL, RECEIVER OF THE WADDELL-ENTZ COMPANY, OF WEST VIRGINIA.

ADJUSTER FOR FIELD-MAGNETS OF DYNAMO-ELECTRlC MACHINES OR MOTORS.

SPECIFICATION forming; part of Letters Patent No. 527,225, dated October9, 1894.

Application filed September 6, 1893. Serial No. [N l To all whom it mayconcern: getting out of alignment, or the wearing of Be it known that I,MONTGOMERY WAD- the bearings, will cause the armature and pole DELL, aresident of Bridgeport, Fairfield pieces to come in contact, resultingin great county, State of Connecticut, have invented injury to themachine as well as the incon- 5 an Improved Magnet-Adjuster, of whichthe venience of stoppage and enforced idleness following is aspecification. of the machine. My invention seeks to ob- Myinventionrelates to dynamo electric maviate this difficulty. chines and motors,and has for its object to- When, from any cause. the relativeposiprovide a means for adjusting the magnets tion of the armature andfield become altered 10 to compensate for the slight change of posiandany eccentricity or lateral displacement tion of the armature, due tothe wear of the is developed, the parts may be centered by bearings andkindred causes. I attain this loosening the screws 19 b and manipulatingobject by the mechanism illustrated in the either or both of the screwsd cl to raise, lower accompanying drawings, in whichor swing themagnets. The screws Z) b are 15 Figure l is a face view of the fieldmagnets then tightened to securely hold the magnets of a dynamo machineor motor. Fig. 2 is a in their adjusted position. The perforationscentral vertical longitudinal section of the c are of sufficient size toallow for the slight field magnets of Fig. 1. Fig. 3 is a viewshownecessary movement of the screws d, it being ing the inventionapplied to another type of understood that the clearance between armazodynamo or motor, viz: atwelve pole machine, ture and field being verysmall the adjustso called. ment required is at all times minute.

In the drawings A is the frame of the ma In Fig. 3 I have shown aslightly different chine to which the field magnets B are atarrangementof adjusting devices. In this tached by any suitable means preferably byfigure I have shown a twelve pole generator,

2 5 screws 19 passing through perforations c in the so called, and twosets of adjusting screws in frame in order to allow for a desiredmoveorder to form a more stable support and to ment of the magnets onthe frame A. Upon facilitate sidewise adjustment. It will be the frame Ais mounted any suitable adj ustunderstood that this type of machine hasthe 7 5 ing device, shown as a rib C cast integral usual supports forthe magnets.

3o therewith to'receive screws clwhich bear upon I do not limit myselfto the precise conthe magnets B. These adjusting devices struction andarrangement shown, nor to any which may be independently supported orspecific device for accomplishing the result which may be mounteddirectly upon the field attained which is the adjustment of themagmagnets and bear upon a suitable supportnets of a dynamo machine ormotor to com- 3 5 also assist to support the field magnets. pensate forthe displacement of the parts in- S is the armature shaft upon which thearcident upon use or abuse. mature may be mounted in any suitable That Iclaim, and desire to secure by Letmanner. ters Patent, is-

In the machine illustrated and in many 1. In a dynamo or motor, vaperforated 0 other dynamo machines the armature is made frame, fasteningdevices extending through to revolve in close proximity to the field andthe perforations to support the field magnets, n concentric with theworking faces of the pole and a support mounted on the frame carrypiecesthereof, and for the sake of economy ing adjusting devices upon whichthe field 0 in generation the clearance is made as small magnets rest,substantially as described. 45 as prudence will allow. From this it willbe 2. In a dynamo or motor a magnet supobvious that a very small changein the relaporting frame A, perforations cin said frame, tive positionof the parts, such as the shaft screws 12 extending through theperforations to support and adjust field magnets B, a support 0 carryingadjusting screws (1 mounted on frame A, substantially as shown anddescribed.

3. An adjuster-for field magnets for dynamos. or motors consisting of asupporting frame A, a support 0 mounted thereon and carrying screws d,as and for the purposes specified.

MONTGOMERY WADDELL.

\Vitnesses:

HARRY M. TURK, CHARLES E. SMITH.

